Swing based, java brewing software. It isn't as mature as commercial offerings, but its the most mature and feature rich run anywhere app out there. It is also open source and has active development. It can run on any platform with a Java 1.5 or better VM on it.

CVS head version has a few bug fixes and features not available in the 2.0 release. Most of them are to overcome a few Swing UI annoyances. Currently it is has some award places in the UI which we hope to iron out.

But if you are looking for something to run on Linux or a Mac.. or just don't want to pay for something.. this might be the ticket.

we, eh... are you one of the developers? I run qbrew right now which is based on...I forget probably C/++ but it;s lacking some features and has some bugs that are annoying. I'll deff check this out.

Ok I downloaded it and looked through it quick and the biggest thing that popped out at me was the database of malts, yeasts, hops etc is empty meaning I have to input everything about everything that I want in there? That would take a considerable amount of time.
and now I looked through the source files and see the data is there is cvs, just doesn't load up when executing the jar... will look into this to see if It's my comp.

Your current working directory must be the same one which the jar file is in. The app is picky about pathing.. something I plan to resolve so the app can be untied from its strict directory structure. But there are a few other things I want to fix first, like the annoying way Swing handles combo boxes inside tables.